Kimsa generates every problem in the browser, grades it exactly, and names the mistake behind every wrong answer. No question bank to exhaust, no calculator, no guesswork.
Unlimited fresh problems per topic and difficulty level — deterministic, calculator-free, exact answers.
Multiple-choice or typed. Graded instantly and exactly — equivalent forms accepted, no false marks.
Each wrong choice is a named misconception, so the student sees why, with a targeted explanation.
Mastery + spaced repetition track real, unaided fluency and resurface weak topics before they fade.
Most apps mark you wrong. Kimsa tells you which mistake you made. Every wrong option is engineered to match one specific, named student error — so results explain the misconception and drive what to practice next.
Tap the wrong answers to see it →
Solve x² − 5x + 6 = 0
Full sample exams per track — adaptive SAT modules, penalty-scored SSAT, no-penalty ISEE — with honest readiness bands.
A blueprint-weighted estimate of how a student would score, updated as they practice and test.
Tracks clean, unaided, fluent solves — not lucky guesses — and schedules review so skills stick.
Strengths, recurring mistakes, time-on-task, and a plain-English readiness verdict.
The same engine ships as a web app and a native iOS shell.
Problems generate on-device — no server round-trip, no per-question cost, no connection required.